Mixing valve



May 14, 1929. l

.d w a 9 ..2 da 5 J Q I @f/2% f patented May 14, 1929.

UNITED STATES PATENT orrics,

EDVfAR-D L. DELANY, OF BROOKLYN, NEW YORK, ASSIG-NOR T0 DELAN'SZ' REALTY GR- PORATIO, OF BROOKLYN, YORK.

MIXING VALVE.

Application ilcd January My invention relates to improvements in mining valves.

The object oi' my invention is to provide a mixing valve particularly adapted for bath purposes, whereby either cold, warm or hot water can be drawn from a single spigot operated by a single lever, and pro-` vide a valve whereby it is impossible to 'turn on scalding water upon the first part of the movement/of the operating lever.

Another object oi" my invention is to provide a valve oi this character adapted more particularly for shower baths, in which the valves are arranged within a recess in the wall above the tub, and providing means whereby the opening is closed by the indi-` provide a valve of this character in which both the hot and cold water valves, the discharge pipes and the inlet pipe are so connected to a casing that a smaller casing can be provided, thus reducing` the cost of manufacture of the valve, and at the saine time providing a simple, cheap and eil'eetive valve having certain details of structure and combination of parts hereinafter more 'fully set tort-h.

In the accompanying drawings Figure 1 is a horizontal view ot' my improved valve shown in position in the recess of the wall.

Figure 2 is a side elevation showing a dial and operating` lever removed. i

Figure 3 is a plan View of the dial and operating lever having indicated thereon, the different points when cold, warm or hot water is drawn. i

Referring now to the drawings, 1 represents the housing which as shown, is provided at its rear end with the vertically disposed cylindrical portions 2 and 3, at the lower end of which are connected the hot water supply pipe 1 and the cold water supply pipe 5. The casing` 1, between the members 2 and 3, is provided with a space 6 communicating with the hot and cold water supply as hereinafter more fully described, and connected to the upper end 0i this space 1'?, 19235. Serial 3,126.

G is a discharge pipe 7 which leads upwardly and supplies the cold, warm and hot water to the shower.

In modern plumbing, these valves are placed within a recess in the wall. and as shown, this recess is indicated at 8.. While l will show and describe my improved, valve as applied for use in showers, it will be understood that the same could be used for `any other purpose without departing trom my invention. A

1n mounting these valves in recesses for showers, the plumbers oiten vary the distance between the hot and cold water supply pipes 4- and 5 and the outer 'tace J ot the wall, and by so doing it has been found difficult to provide. a neat closure closely titting the wall.

ln my improved construction the casing 1 is provided with a movable easing lll closely littiing the outer wall thereof and curled outwardly as indicated at 11, and adjustably held on the casing 1 by set screws 12 and 13. The outer end olif the casing 1t) is provided with ears 14 having screw threaded recesses therein adapted to receive lthe screws 15 and 16 which pass through the dial 17 and tirmly hold the dial 17 thereto. By this structure it will be seen, should the casing 1 be set by the plumber a greater or less distance from the outer wall 9, the casing 10 can be adjusted inwardly or outwardly on the casing 1, and firmly held in its adjusted position so that the dial 17 will have its inner lace closely Afitting the outer wall 9. lt is understood that this adjustment is made bew tore the dial is applied.

The casing 1 is provided with a central solid portion 18 internally threaded as indicated at 19, and into which is screwed the valve operating member 20. This member 20, as shown, is of a cylindrical form and provided at its,i outer end with the reduced portion 21, having a rounded, shoulder 22 for the purpose presently described. The easing 1, on each side et the solid portion 18, is provided with a cylindrical valve, entering cylindrical spaces 23 and 2e havingvalve seats 25 and 2G at their outer ends surrounding passages 27 and 28, eoininunieating with the hot and cold water supply spaces 2 and 3. 1Within the space 23 is the hot water valve 29, having` the washer 30 on its inner end co-operating with the seat 25. Secured to the valve 29 by a screw or Vse `cold water valve 36 which carries the washer 37, (zo-operating with the valve seat 26. Secured on the end ofthe valve 36, by a screw or other means, is a plug 38 which is ol a diameter to completely close the passage 28, and said plug is provided on opposite sides with the cut away portions 39 and '40 intermediate its ends, leaving the enlarged solid portion 4l at its inner end. The valve 36 is provided with a valve stem 42 extending outwardly through a stalling box 43, carried by the outer end of the cylindrical space 24,`whereby a tight joint is provided with the valve stem. The outer end of the valve stem 42 is reduced as indicated at 44, and has its outer end screw Jthreaded as indicated at 45. 46 which extends outwardly through the dial 17. Surrounding the reduced portion 46 is an elongated plate 47 which hasan 7 enlarged portion 48 having its inner tace c provided with a concaved groove 49 adapted to bear against the rounded shoulder' 22 oit the valve operating mechanism. The outer face of the enlarged portion 1s convexed at l50, vand carried bythe extension 46 is a plate or nut 5l having its inner tace eoncaved at 52 and bearing against the convexed surface whereby a ball joint connection provided between the member 26 and the plate 47, whereby any variation in the alinement Vof the valve stems 32 and 42, and valve Cil operating member 2() is compensated for.

The plate 47 at its outer ends is provided with openings and 5'4 of a size greater than that of the reduced portions 34 and 44 of the valve stems 32and 42. On the reducedportions 34 and 44 ot the valve stems, on each side'of the plate are washers 55 and 56, and nuts 57 and 58 are screwed on the valve stemstor holding the plate -7 on the valve stems, yet allowing the slight movement ot the valves indepemlent of the plate '47i Y The valve operating member 2t) is provided with a cylindrical extension 59 which extends 'out through the opening 60 in the casing l, and which forms a guide. This extension is threaded as indicated at 6l and f upon it is threaded the nut 62, whereby outward movement of the valve operating member is limited, providing a simple regulator for limiting the movement ot' the pointer, which I will now proceed to describe.

The stem 2l has a reduced extension The member 2l extends outwardly through an opening' 63 in the dial 17, and secured thereon on t-he outside ol the dial is the operating lever 64 having the pointer 65. The dial as shown, has markings thereon to indicate how the valves are set` so that the pointer 65 will readily indicate the position ot the valves, so the operator will know what kind of water is being drawn.

Figure l of the drawings shows the valve closed, and the pointer 65 would be pointing at the point on the dial indicated by the words Shut oil. Turning the lever 64 so that the pointer 65 would point to the word Cold, would cause the'member 2() to move outwardly, due to the pitch olf the threads thereon, and would move the plate 47 outwardly which in turn would move the two valves 29 and outwardly and bring the washers 230 and 37 from engagement with the valve siats 25 and 26. rlhe member 3S carried by the cold water valve 36 would move sulliriently 'lar through tht` opening 28 to allow the cold water to pass through the rut away portions 239 and 4t) into the passage 6. rlhe hot water valve. 36, as herebcl'ore stated, would also move outwardly, but the plug 3l would remain in such a position that the opening 27 would be closed. 'lhe continued movement olt the operating` lever 64 would move the hot water valve to Va posi-- tion such that the plug 3l would not obstruct the passage 27 and hot water would enter. The plug 3S has. by this time moved a suticient distance.. outavardly to partially close the passages 39 and 40 therein, and thus both hot and cold water would be passing into the passage 6, and warm water would be passing from the pipe 7. 'lhe rontinued movement ot the operating lever, .so that the pointer would be opposite the word Het on the dial, would cause the plug 3l to move outwardly so that it would be entirely out ot' the passage 27 and the plug 38 would then be in a position so that the solid portion 41 would be wholly within the pas sage 28 and the cold water entirely rut oil', and the hot water would be discharged l'rom the pipe 7.

From the description it will be seen that in operating the valves it is lirst necessary to admit cold water, then warm water and then hot water to the space 6, and thus the liability ot scalding is greatly reduced. By having the space 6 above the guide 5S), the mixing ot the hot and cold water is improved on account ofV an upward mixing d ischa rge.

Having thus fully described my invention what I claim is:

l. A mixing valve comprising a easing having a hot water inlet and a Ycold water inlet, an outlet communicating therewith` separate valves controlling the supply of water from the hot and cold water inlets to il t) lltl lil

the outlet, a frame adjustably carried by the casing, and a dial carried by the adjustable trame, and a lever opeii'atingon said dial for controlling said valves whereby first cold water passes trom the outlet and gradually gets hotter as the lever is moved on the dial. W2. A mixing valve comprising a casing having a hot water inlet and a cold water inlet communicating with an outlet, valves controlling the comnnmication` between the hot and cold water inlets and the outlet, a member having a threaded connection with the casing intermediate the valves, means tor rotating said member and means carried by the screw threaded member and operating the valves whereby cold water is first discharged from the outlet and on the continued movement of the lever the outlet gradually gets warm until hot water is discharged from the outlet.

3. A mixing valve comprising a casing having a hot water and a cold water inlet communicating with an outlet, valves con* trolling the communication between the hot and cold water inlets and the outlet, a menr ber having a threaded connection with the casing intermediate the valves, a lever tor turning said member within the casing, an elongated plate carried by the threaded member and connected to the valves whereby the reta-tion of the threaded member opens and closes the valve.

4. A mixing valve comprising a casing having a hot water inlet and a cold water inlet, and an outlet intermediate the same and communicating therewith, valves controlling the communications between the hot water inlet and the cold water inlet and the outlet, a member screwed into the casing between the valves, a plate loosely mounted upon the outer end of the threaded member and connected to the valve stems, and a lever connected to the eXtreme outer end ot the threaded member whereby the rotary movement ot the lever causes the valves to simult aneously'"nl unseat.

5. A mixing valve comp-rising a casing having hot and cold water inlets, and an outlet intermediate the same and in communication therewith, reciprocating valves closing the communication between the hot and cold water inlets and the outlet, stuiiing boxes surrounding the valve stem, an. oscillating member carried by the casing intermediate the valves, a iframe adjustably mounted on the casing', a dial removably carried by the trame, an operating lever carried by the oscillating member on the outside ot the dial, and an arm loosely mounted on the oscillating member and adapted to reciprocate the valves :tor simultaneously seating and unseating'the same.

6. A mixing valve comprising a casing having a hot water inlet and a cold water inlet, communicating with an outlet, valves controlling the communieation between the hot and cold water inlets and the outlet, a threaded member carriedby the casing intermediate the valves, a guide carried by said member and extending through lhe casing, means tor rotating said member, and means carried by the screw threaded mem ber :for operating the valves, whereby cold water is iirst discharged from the outlet, and the continued movement thereot gradually opens the outlet until warm and then hot water is discharged from the outlet.

7. A mixing valve comprising a casing having a hot water inlet and a cold water inlet, comn'iunicating with an outlet, valves controlling the communication between the hot and cold water inlets and the outlet, a threaded member carried by a casing intermediate the valves, a guide carried by the threaded member and extending through the easing, a stop nut adjustable on the guide on the outside of the casing, means for rotating said member, and means carried by the screw threaded member and operating the valves.

8. A mixing valve comprising a casing having hot and cold water inlets communi eating with an outlet, valves controlling the communication between the hot and cold water inlets, and the outlet, a threaded member carried by the casing intermediate the valves, a lever for turning said threaded member, an elongated plate carried by and having a ball. joint with the threaded member and having its ends connected to the valves, whereby rotation of the threaded member opens and closes the valves.

9. A mixing valve comprising a casing having a hot water inlet and a cold water inlet, an outlet intermediate .the same and conm'iunicating therewith, valves controlling the communication between the hot water inlet and the cold water inlet and the outlet, a member screwed into the casing between the valves, a plate loosely mounted upon the outer end ot the threaded member and having a rocking movement'thereon and having its outer ends loosely connected to the valves, and means for actuating said threaded member.

l0. A mixing valve comprising a casing having a hot water inlet and a cold water inlet, and an outlet intermediate the same and communicating therewith, valves con'- trolling the communication between the hot water inlet and the cold water inlet and the outlet, a member screwed in the casing between the valves, a plate loosely mounted upon the threaded member and having a rocking movement thereon and extending outwardly and having openings through which the valve stems loosely pass, and means lor loosely securing the valve stems to the plate.

l1. A mixing valve comprising a casing having a hot water inlet and a oold water inlet, and an outlet, valves controlling the communication between the hot Water inlet -and the cold Water inlet and the outlet, a member screwed into the easing, a plate :loosely mounted near the outer end of the threaded member and having` a rocking movement thereon, and having its outer ends provided with a rocking connection With the Valves, and means for adjusting said threaded member.

12. A mixing valve comprising a casing, having aV hot Water inlet, a cold water inlet and an outlet, valves Controlling the eommunioation between the hot Water inlet and the cold Water inlet and the outlet, and eon- EDVARD L. DELANY. 

